Hot Bar Soldering Machine – Plenty of Tips on Purchasing a Hot Bar Soldering Machine.

We would like to supply you with a suitable technology to the efficient soldering procedure of our connection technology. Therefore we have developed and implemented a really interesting solution. The Bar Soldering process connects different connection parts with each other. Mainly because that this contact pads tend to be soldered to your PCB it is important that the type of material used provide a slightly different alloy, by which reliable solder points can be achieved. Just before the soldering process one of many two solder points is coated with flux and therefore the connector part is pressed onto this aspect by the still cold thermode. Subsequently a short heating in the Automatic soldering machine is conducted before the melting temperature is reached. The machine is cooled down extremely fast after the soldering has brought place. Air is almost always used for the cooling.


Although Hot Bar Soldering is really a single solder process multiple solder connections are typically produced. Yet another excellent advantage will be the mechanical fixation of your solderable part through the thermode ahead of the soldering process starts. Because of this both parts can perfectly be employed to the appropriate position.

Previous technique

Currents between 150 and 300 Ampere are employed to heat the thermode. In classical systems the actual is generated by way of a transformer. Because of thick supply cables (thumb’s width) leading the actual towards the thermode these systems are nearly immobilized. They just move several millimeters in the direction of the stroke which is sufficient to cause cable breaks – especially with the thermode connection – in the 24/7 operation.

Our technique

We also use currents approximately 300 Ampere in the thermode, however in our approach the thermode is put directly behind the energy electronics which converts the input current of circa 15 Ampere (input voltage 24V) as much as 300 Ampere. The 24 Volt supply lines are thin in comparison to the supply lines of conventional systems. Additionally the whole method is packed in a aesthetic designer housing.


During the soldering of Auto Soldering Machine behave as in the foreseeable future application: They dissipate heat perfectly rendering it challenging to connect a part using these PCBs by soldering. The best solution for this particular problem is a Hot Bar soldering system simply because it applies enough energy towards the solder points to be able to develop a reliable connection within a limited time. Interesting applications

We offer the suitable connecting elements to keep up sufficient high current flow.

Practical Example:

One application is producing a daytime running light with higher power LEDs mounted onto an Aluminum core PCB and connected to one other. In cases like this the bond technology contains THT-jumpers with Hot Bar Soldering pads. The soldering was done by Hot Bar Soldering process:


We present the center of the system, the Bar Soldering Generator BLG-300. Its design is unique in fact it is only exceeded by its function.

Setup in the thermode

Usually thermodes are constructed with stainless-steel, but in addition other materials, e.g. Wolfram is feasible We deliver an extensive selection of different widths therefore we often adapt the thermodes individually for the customers soldering requirements. Caused by a special thermode profile we achieve an exceptionally homogeneous heating. Integrated from the thermode there exists a temperature sensor positioned in ways to make as near as possible measurement results. Because of the complete pluggable connections the change of the thermode is so simple that you need about one minute. For series production we recommend buying two Hot Bar Soldering Generators to change the thermode without time-related stress and even production interruption.

Working cycle

As a result of our special generator technique ultimately causing a better power of the Soldering Bar at the thermode and also the compatible control electronics this site offers a quick, high-performance system. Subsequently we chart a working cycle diagram because it is used to solder flex strips to some PCB. Dependant upon the application the cycle times may differ in time. By performing in-house experiments and continuous parameter adjustment the perfect cycle times are achieved. Most of the time our systems work in three eight-hour shifts wherein a split second is crucial. Thereby, it is important to opt for the cool down time – enough time for cooling the solder bar before it is lifted up from your soldering point.

Tabletop system BLS-50

Our Hot Bar Soldering system BLS-50 is actually a complete system for direct use in the ongoing production. The Hot Bar Soldering station is dependant on a universal mounting from the base plate where various equipment does apply. We are able to also construct and create the perfect mounting setup. In the simplest form you send us the parts which have to be soldered therefore we construct the compatible mounting plate for yourself.

With all the included control electronics all required parameters could be set. The apparatus is controlled having a two-button operation as well as the whole device corresponds to the current CE safety standard. To implement the Soldering system a 380 Volt (16A) power source and compressed air (6-8 bar) is needed. The system consists of the tabletop as well as the associated power supply:

Upon request the Bar Soldering station BLS-50 (model BLS-50-D)can be obtained that enables the strain to become monitored electrically. In such a case, a precise control unit for 15dexopky using the prescribed target pressure values is provided. This special function is vital for all those processes where materials are soldered to very sensitive substrates as well as monitoring and documenting all production parameters permanently. The control electronics which can be included enables the setting from the following parameters:

Production line

In your affiliated company, NE-Sensoric GmbH & Co. KG, we build production lines matching perfectly to the Hot Bar Soldering system. Again, the main objective is always with a universal possible application. The modular construction shortens the development and delivery time. By means of industrial robots the new Bar Soldering system can solve just about any soldering task. Soldering in angular positions, offset rows and also different positions are no worries for our system. In order to modify the LED Soldering Machine we recommend that you replace the total solder head since time required is under a minute. This kind of system allows the customization to each and every new production situation within your company.